Problema com a biblioteca LineAndPointFormatter Por favor me ajude!

Olá pessoal tudo bem?
Sou novo aqui e não tenho grandes conhecimentos sobre programação. Estou tentando executar um código já pronto que se encontra na página:

http://androidplot.com/docs/quickstart/

Estou tentando seguir os passos. Fiz download da biblioteca (http://androidplot.com/download), coloquei a dependência como diz na página e criei a class main com o o código correspondente na página do quickstart.

O problema é que ao fazer tudo isso, o método setInterpolationParams() não é reconhecido. Por favor gente estou precisando desse código. Me ajudem...


[img]http://uploaddeimagens.com.br/imagens/sem_titulo-png--15348[/img]

import android.app.Activity;
import android.graphics.DashPathEffect;
import android.os.Bundle;
import com.androidplot.util.PixelUtils;
import com.androidplot.xy.SimpleXYSeries;
import com.androidplot.xy.XYSeries;
import com.androidplot.xy.*;
import java.util.Arrays;

/**
* A simple XYPlot
*/
public class SimpleXYPlotActivity extends Activity
{

private XYPlot plot;

@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.simple_xy_plot_example);

// initialize our XYPlot reference:
plot = (XYPlot) findViewById(R.id.plot);

// create a couple arrays of y-values to plot:
Number[] series1Numbers = {1, 4, 2, 8, 4, 16, 8, 32, 16, 64};
Number[] series2Numbers = {5, 2, 10, 5, 20, 10, 40, 20, 80, 40};

// turn the above arrays into XYSeries':
// (Y_VALS_ONLY means use the element index as the x value)
XYSeries series1 = new SimpleXYSeries(Arrays.asList(series1Numbers),
SimpleXYSeries.ArrayFormat.Y_VALS_ONLY, "Series1");

XYSeries series2 = new SimpleXYSeries(Arrays.asList(series2Numbers),
SimpleXYSeries.ArrayFormat.Y_VALS_ONLY, "Series2");

// create formatters to use for drawing a series using LineAndPointRenderer
// and configure them from xml:
LineAndPointFormatter series1Format = new LineAndPointFormatter();
series1Format.setPointLabelFormatter(new PointLabelFormatter());
series1Format.configure(getApplicationContext(),
R.xml.line_point_formatter_with_labels);

LineAndPointFormatter series2Format = new LineAndPointFormatter();
series2Format.setPointLabelFormatter(new PointLabelFormatter());
series2Format.configure(getApplicationContext(),
R.xml.line_point_formatter_with_labels_2);

// add an "dash" effect to the series2 line:
series2Format.getLinePaint().setPathEffect(
new DashPathEffect(new float[] {

// always use DP when specifying pixel sizes, to keep things consistent across devices:
PixelUtils.dpToPix(20),
PixelUtils.dpToPix(15)}, 0));

// just for fun, add some smoothing to the lines:
// see: http://androidplot.com/smooth-curves-and-androidplot/
series1Format.setInterpolationParams(
new CatmullRomInterpolator.Params(10, CatmullRomInterpolator.Type.Centripetal));

series2Format.setInterpolationParams(
new CatmullRomInterpolator.Params(10, CatmullRomInterpolator.Type.Centripetal));

// add a new series' to the xyplot:
plot.addSeries(series1, series1Format);
plot.addSeries(series2, series2Format);

// reduce the number of range labels
plot.setTicksPerRangeLabel(3);

// rotate domain labels 45 degrees to make them more compact horizontally:
plot.getGraphWidget().setDomainLabelOrientation(-45);

}
}